US132199A - Improvement in door-bells - Google Patents

Improvement in door-bells Download PDF

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US132199A
US132199A US132199DA US132199A US 132199 A US132199 A US 132199A US 132199D A US132199D A US 132199DA US 132199 A US132199 A US 132199A
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bells
lever
door
cam
improvement
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    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K1/00—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs
    • G10K1/06—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs the resonating devices having the shape of a bell, plate, rod, or tube
    • G10K1/07—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs the resonating devices having the shape of a bell, plate, rod, or tube mechanically operated; Hand bells; Bells for animals

Definitions

  • FIG. l is a plan or top view of the bell with its concave sounding-shell removed, so as to show the interior working mechanism
  • Fig. 2 is a side elevation of the same from the side A, showing, also, the sounding-shell, and representing it and the base-plate as cut in section
  • Fig. 3 is a side elevation of the same from the side B, but without the sounding-shell.
  • This invention is an improvement in that class of door-bells which are operated by a pull-wire running through the back or baseplate of the bell.
  • the letter a indicates the base-plate, and b the pillar supporting the sounding-shell c.
  • the letter d indicates the hammer-arm, pivoted on the pin al and d is the hammer-head. d is the spring which gives throw to the hammer-arm.
  • Overlying the hammer-arm is the cam-lever e, pivoted on the pin (1 its back striking against the stop 01 affixed to thehammer-arm, so that the cam-lever can swing no further outward than indicated by its position in the drawing.
  • cam 6 From the inner side of the cam-lever a pin, 0 projects, running through the guide 01 and on this pin is the spiral compression-spring e tending to keep the camlever always against the stop d
  • the cam 6 On the end of the cam-lever is the cam 6
  • the letter f indicates the pull-wire lever, and f is the pull-wire running through a hole in the baseplate. f is a spring tending to keep the lever f always in the position shown in the drawing.

Description

J. P. CONNELL.
Improvement in Door-Bells.
a fia UNITED STATES PATENT OFFICE.
JOHN P. CONNELL, OF KENSINGTON, CONNECTICUT.
IMPROVEMENT IN DOOR-BELLS.
Specification forming part of Letters Patent No. 132,199, dated October 15, 1872.
new and useful Improvements in Door-Bells,
of which the following is a specification, reference being bad to the accompanying drawing, in which- Figure l is a plan or top view of the bell with its concave sounding-shell removed, so as to show the interior working mechanism; Fig. 2 is a side elevation of the same from the side A, showing, also, the sounding-shell, and representing it and the base-plate as cut in section; and Fig. 3 is a side elevation of the same from the side B, but without the sounding-shell.
This invention is an improvement in that class of door-bells which are operated by a pull-wire running through the back or baseplate of the bell.
The letter a indicates the base-plate, and b the pillar supporting the sounding-shell c. The letter d indicates the hammer-arm, pivoted on the pin al and d is the hammer-head. d is the spring which gives throw to the hammer-arm. Overlying the hammer-arm is the cam-lever e, pivoted on the pin (1 its back striking against the stop 01 affixed to thehammer-arm, so that the cam-lever can swing no further outward than indicated by its position in the drawing. From the inner side of the cam-lever a pin, 0 projects, running through the guide 01 and on this pin is the spiral compression-spring e tending to keep the camlever always against the stop d On the end of the cam-lever is the cam 6 The letter f indicates the pull-wire lever, and f is the pull-wire running through a hole in the baseplate. f is a spring tending to keep the lever f always in the position shown in the drawing.
When the lever f is pulled down it presses past the cam 6 carrying back the hammerarm for a stroke, and when the pin f passes by the cam the hammer is tripped and sounds the bell. The spring f? carries the lever f back to position, the pin f passing up on the opposite side of the earn, the spring 0 allowing it to give way for this purpose.
I claim as my invention' The combination of the hammer-arm d, the cam-lever e and cam c and the pull-wire lever f, all constructed and operating substantially as described, for the purpose set forth.
JOHN P. CONN ELL.
US132199D Improvement in door-bells Expired - Lifetime US132199A (en)

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